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Fittings

Marine Fittings

Marine fittings are essential components for connecting, securing, and routing water, fuel, and plumbing systems on boats. Built for durability and corrosion resistance, high-quality fittings ensure safe, leak-free operation for both recreational and professional vessels.

Durable & Reliable Marine Connections

  • Marine-grade construction for corrosion resistance and long life
  • Wide selection for water, fuel, and plumbing applications
  • Easy installation and maintenance with professional-grade designs

Trusted Brands

Top marine fittings brands include Albin Group, Attwood Marine, Beckson Marine, Dometic, Forespar Performance Products, GROCO, Jabsco, Johnson Pump, Perko, Raritan, Rule, Scandvik, Sea-Dog, Seaview, Shurflo by Pentair, T-H Marine Supplies, Viega, Whitecap and more for professional reliability.

Related Marine Categories

Marine Plumbing & Ventilation, Hose, Thru-Hull Fittings, Marine Sanitation

Why Buy Marine Fittings from MarineWaze

  • Marine-grade, corrosion-resistant fittings for safe and reliable plumbing
  • Trusted brands for long-lasting performance and leak-free connections
  • Expert support for installation, maintenance, and system upgrades
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  • Dometic O-Ring S\/T Pump Kit [385310151]
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    Dometic O-Ring S/T Pump Kit [385310151]

    Dometic

    MSRP: $31.99
    $30.99
    O-Ring S/T Pump KitThis set of 2 "O" rings will fit both S and T pumps that have 8 screws connecting the top and bottom together. *Sold as a PairWARNING: This product can expose you to chemicals...
    MSRP: $31.99
    $30.99
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    MSRP: $31.99
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  • Dometic Bellows S\/T Pump Kit [385230980]
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    Dometic Bellows S/T Pump Kit [385230980]

    Dometic

    MSRP: $191.99
    $156.99
    Bellows S/T Pump KitDometic™ Bellows assembly for the S-Vacuum pump, VG4-Vacuum pump and the T-Discharge pump. *This does not include the O-rings (P/N 385310151)Features:Toilet flush ball kitColor -...
    MSRP: $191.99
    $156.99
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    MSRP: $191.99
    $156.99
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  • Dometic MSD Fitting f\/Small Tank 970 Series [385320006]
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    Dometic MSD Fitting f/Small Tank 970 Series [385320006]

    Dometic

    MSRP: $31.99
    $30.99
    MSD Fitting f/Small Tank 970 Series ToiletsReplaces MSD fittings for Series 974 MSD models.  Converts Series 972 and 974 - 2.6 gallon models to MSD toilets.*Sold as an IndividualWARNING: This...
    MSRP: $31.99
    $30.99
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  • Dometic Duck Bill Valve Kit - 1-1\/2" [385310076]
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    Dometic Duck Bill Valve Kit - 1-1/2" [385310076]

    Dometic

    MSRP: $54.99
    $49.99
    Duck Bill Valve Kit - 1-1/2"The Dometic™ Duck Bill Valves Kit comes with two (2) 1 ½” duck bill valves for “T” and “S” series pumps.  These valves are a critical component of the VacuFlush system...
    MSRP: $54.99
    $49.99
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  • GROCO 2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-2000-S]
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    GROCO 2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-2000-S]

    MSRP: $64.00
    $49.99
    2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting Features:Male NPT x Hose connection#316 Stainless SteelSizes from 1/2" to 3"Standard FlowNSF-61 compliantSuitable for use in potable...
    MSRP: $64.00
    $49.99
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    MSRP: $64.00
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  • Scandvik 3\/8" BSP x 1\/2" NPT - Brass [10002]
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    Scandvik 3/8" BSP x 1/2" NPT - Brass [10002]

    Scandvik

    MSRP: $23.25
    $19.99
    3/8" BSP x 1/2" NPT - BrassAdapters convert 3/8” BSP-M to 1/2” NPT-M or 1/2" NPS-M. Washers included.Specifications:Material: BrassBrass Thread Type: 3/8” BSP-F and 1/2” NPT-M
    MSRP: $23.25
    $19.99
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    MSRP: $23.25
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  • Perko Vented Flip Top Cap f\/Fills with 1-1\/2" Hose - White [0795DP0WHT]
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    Perko Vented Flip Top Cap f/Fills with 1-1/2" Hose - White [0795DP0WHT]

    Perko

    MSRP: $45.64
    $32.99
    Perko Vented Flip Top Cap f/Fills with 1-1/2" HoseWhite PolymerEasily Mounts Directly on Gunnel with Removing Fill BodyIncludes Metallic Inserts for Gas, Diesel or Water FillsIntegral Tank Vent with...
    MSRP: $45.64
    $32.99
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  • GROCO 2-1\/2" Bronze Tri-Flanged Ball Valve\/Seacock [FBV-2500] GROCO 2-1\/2" Bronze Tri-Flanged Ball Valve\/Seacock [FBV-2500]
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    GROCO 2-1/2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-2500]

    MSRP: $675.00
    $414.99
    2-1/2" Bronze Tri-Flanged Ball Valve/SeacockFeatures:1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in the open position), and one drain plugThe...
    MSRP: $675.00
    $414.99
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    MSRP: $675.00
    $414.99
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